乙津 夢

You's childhood friend whom he met at the lookout seven years prior to the story. They made a promise that they would see each other again and get married.

She has an illness that caused her to be sent to the city for treatment, however she returned to Hibarigasaki years later.

When reuniting with You, she initially pretends she hasn't met him before and that she hasn't been in Hibarigasaki prior to moving back; she wanted You to forget about her since she was due to die soon because of her illness.

In Yume After, she gains a new ailas Kogasaka Yume / "小河坂 夢" 

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